Status:

UNKNOWN

Oral Contraceptive vs Menstrual Cycle Ex Vivo Model

Lead Sponsor:

University of Toronto

Conditions:

Contraceptives, Oral

Sex Hormone

Eligibility:

FEMALE

18-35 years

Phase:

NA

Brief Summary

Despite comprising half the population, females are often left out of muscle research due to the impact of changing hormones during the menstrual cycle and when using oral contraceptives. This makes i...

Detailed Description

The aim of the study is to develop a non-invasive model using serum from both oral contraceptive users and non-users at various stages of their cycles, to understand if different cycle or pill stages ...

Eligibility Criteria

Inclusion

  • BMI between 18.5-29.9 kg/m2 (I.e., non-obese).
  • For OC users: on monophasic OCs for \> 3 months prior to study enrollment
  • For non-OC users: regular menstrual cycles length (25-35 days) for at least 3 months prior to study and at least 6 months off of OCs.

Exclusion

  • Chronic disease diagnosis (cardiovascular, thyroid, diabetes)
  • Current or recent remission of cancer
  • Regular use of NSAID (except low-dose aspirin), anticoagulants
  • Use of prescription drugs that would impact metabolism, e.g. Statins, Lithium, Attention-Deficit/Hyperactivity Disorder (ADHD) medication.
  • Insertion of intrauterine device (IUD) - exception: copper
  • Use of ergogenic aids such as creatine
  • Regular Tabacco use
  • Use of illicit drugs (growth hormones, testosterone)
  • For non-OC users: Use of oral contraceptives for \> 6 months prior to study enrollment - to ensure return to regular menstrual cycle.

Key Trial Info

Start Date :

August 9 2023

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

September 1 2024

Estimated Enrollment :

10 Patients enrolled

Trial Details

Trial ID

NCT06124274

Start Date

August 9 2023

End Date

September 1 2024

Last Update

November 9 2023

Active Locations (1)

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1

Goldring Centre for High Performance Sport at the University of Toronto

Toronto, Ontario, Canada, M5S2C9